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Note 3 - Revenue - Contract Assets (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2023
Dec. 31, 2022
Balance outstanding   $ 9,982
Amounts transferred over time to contract assets $ 76,225  
Allowance for current expected credit losses (22)  
Amounts invoiced during the period (74,439)  
Balance outstanding at March 31, 2023 $ 11,746